[PATCH] USB: ftdi_sio vendor code for RR-CirKits LocoBuffer USB

[linux-2.6-omap-h63xx.git] / drivers / usb / serial / io_ti.c

diff --git a/drivers/usb/serial/io_ti.c b/drivers/usb/serial/io_ti.c
index 2edf9cabad201d739e1209130af7c4df60e6e2dc..8e1e2253748bfaa2e2f72a768de4f70e802165cb 100644 (file)
--- a/drivers/usb/serial/io_ti.c
+++ b/drivers/usb/serial/io_ti.c
@@ -1865,20 +1865,14 @@ static void edge_tty_recv(struct device *dev, struct tty_struct *tty, unsigned c
        int cnt;
 
        do {
-               if (tty->flip.count >= TTY_FLIPBUF_SIZE) {
-                       tty_flip_buffer_push(tty);
-                       if (tty->flip.count >= TTY_FLIPBUF_SIZE) {
-                               dev_err(dev, "%s - dropping data, %d bytes lost\n",
-                                       __FUNCTION__, length);
-                               return;
-                       }
+               cnt = tty_buffer_request_room(tty, length);
+               if (cnt < length) {
+                       dev_err(dev, "%s - dropping data, %d bytes lost\n",
+                               __FUNCTION__, length - cnt);
+                       if(cnt == 0)
+                               break;
                }
-               cnt = min(length, TTY_FLIPBUF_SIZE - tty->flip.count);
-               memcpy(tty->flip.char_buf_ptr, data, cnt);
-               memset(tty->flip.flag_buf_ptr, 0, cnt);
-               tty->flip.char_buf_ptr += cnt;
-               tty->flip.flag_buf_ptr += cnt;
-               tty->flip.count += cnt;
+               tty_insert_flip_string(tty, data, cnt);
                data += cnt;
                length -= cnt;
        } while (length > 0);
@@ -2733,12 +2727,11 @@ static int edge_startup (struct usb_serial *serial)
        dev = serial->dev;
 
        /* create our private serial structure */
-       edge_serial = kmalloc (sizeof(struct edgeport_serial), GFP_KERNEL);
+       edge_serial = kzalloc(sizeof(struct edgeport_serial), GFP_KERNEL);
        if (edge_serial == NULL) {
                dev_err(&serial->dev->dev, "%s - Out of memory\n", __FUNCTION__);
                return -ENOMEM;
        }
-       memset (edge_serial, 0, sizeof(struct edgeport_serial));
        sema_init(&edge_serial->es_sem, 1);
        edge_serial->serial = serial;
        usb_set_serial_data(serial, edge_serial);
@@ -2751,12 +2744,11 @@ static int edge_startup (struct usb_serial *serial)
 
        /* set up our port private structures */
        for (i = 0; i < serial->num_ports; ++i) {
-               edge_port = kmalloc (sizeof(struct edgeport_port), GFP_KERNEL);
+               edge_port = kzalloc(sizeof(struct edgeport_port), GFP_KERNEL);
                if (edge_port == NULL) {
                        dev_err(&serial->dev->dev, "%s - Out of memory\n", __FUNCTION__);
                        goto cleanup;
                }
-               memset (edge_port, 0, sizeof(struct edgeport_port));
                spin_lock_init(&edge_port->ep_lock);
                edge_port->ep_out_buf = edge_buf_alloc(EDGE_OUT_BUF_SIZE);
                if (edge_port->ep_out_buf == NULL) {